dd2_test.sh revision 321140 
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26# $FreeBSD: stable/10/bin/dd/tests/dd2_test.sh 321140 2017-07-18 17:36:25Z ngie $
27
28
29atf_test_case max_seek
30max_seek_head()
31{
32	atf_set "descr" "dd(1) can seek by the maximum amount"
33}
34max_seek_body()
35{
36	case `df -T . | tail -n 1 | cut -wf 2` in
37		"ufs")
38			atf_skip "UFS's maximum file size is too small";;
39		"zfs") ;; # ZFS is fine
40		"tmpfs")
41			atf_skip "tmpfs can't create arbitrarily large spare files";;
42		*) atf_skip "Unknown file system";;
43	esac
44
45	touch f.in
46	seek=`echo "2^63 / 4096 - 1" | bc`
47	atf_check -s exit:0 -e ignore dd if=f.in of=f.out bs=4096 seek=$seek
48}
49
50atf_test_case seek_overflow
51seek_overflow_head()
52{
53	atf_set "descr" "dd(1) should reject too-large seek values"
54}
55seek_overflow_body()
56{
57	touch f.in
58	seek=`echo "2^63 / 4096" | bc`
59	atf_check -s not-exit:0 -e match:"seek offsets cannot be larger than" \
60		dd if=f.in of=f.out bs=4096 seek=$seek
61	atf_check -s not-exit:0 -e match:"seek offsets cannot be larger than" \
62		dd if=f.in of=f.out bs=4096 seek=-1
63}
64
65atf_init_test_cases()
66{
67	atf_add_test_case max_seek
68	atf_add_test_case seek_overflow
69}
70